Electronic piano



FIG. 1 is a top, front, right side perspective view of an electronic piano showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof, the opposite side being a mirror image;

FIG. 5 is the rear view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for an electronic piano, as shown and described. 